52results about How to "Cause leakage" patented technology

The invention belongs to the field of pharmaceutical preparations, and relates to preparation of a novel target nano carrier and application of the novel target nano carrier in a camptothecin drug targeting delivery system. The system can be represented as PAMAM-HA/drug, wherein PAMAM is polyamide amine-amine arboraceous macromolecules of different generations, HA is hyaluronic acid of different molecular weights, and the drug is one or more of camptothecin anticancer drugs such as camptothecin, 10- hydroxycamptothecine, topotecan and the like. The carrier is used for wrapping the camptothecin drugs, and has the actions of prolonging the drug blood circulation time, improving the drug bioavailability, reducing the non-tumor part concentration of the drug, reducing the drug cytotoxicity, and simultaneously protecting the lactonic rings of the camptothecin drugs from damage, thereby improving the tumor treatment efficiency from multiple aspects. The nano carrier provided by the invention has important significance in promoting the safe delivery of the camptothecin drugs and the effective treatment of tumor.

The invention discloses an efficient grinding equipment for pipeline finish machining and polishing. The efficient grinding equipment comprises a base, a shell is fixed to the top of the base, a clamping mechanism, a grinding mechanism and a dust removal mechanism are arranged inside the shell, a driving mechanism used for driving the clamping mechanism to rotate is fixed to the top of the base, and a transmission mechanism is arranged on the outer wall of the shell above the driving mechanism. According to the efficient grinding equipment for pipeline finish machining and polishing, by arranging the driving mechanism, the clamping mechanism, the grinding mechanism and the dust removal mechanism, the phenomenon of missing grinding of the surface of a circular pipe is avoided while the circular pipe is uniformly ground, the grinding effect and the grinding speed of the circular pipe are improved, and meanwhile, the effect of efficiently removing dust in the shell is achieved.

The invention discloses a hydroponic method of jute, belonging to the technical field of crop cultivation. The method comprises the steps of: taking a plastic cultivating box with the length of 32cm, the width of 22cm and the height of 7.5cm as a cultivating container, filling hydroponic nutrient solution into the cultivating container, enwrapping the base of a seedling by a sponge strip, fixing the base of the seedling in a small hole of a foam plate by a pair of tweezers for cultivating under proper cultivating conditions. In the invention, the method is simple, the cost is low, the survival rate of the seedlings is improved to 100%, the average height of the seedling can be 10cm after transplanting seedlings for half of a month, the raw weight of ground part of the seedling is about 0.5 g/strain, the complete, healthy, clean and orderly root system can be obtained, and the difficult problems of lost root systems and polluted samples in the traditional method of soil culture can be overcome.

The invention belongs to the technical field of syringes, in particular suitable for a drug injection mode for animals, and discloses a pre-filled high-temperature sterilization syringe. The pre-filled high-temperature sterilization syringe comprises a tube cap, a needle tube, a push rod and a piston, wherein the part, near the handle end of the needle tube, of the needle tube is provided with a stop ring, and the front end of the needle tube is provided with an external thread; the tube cap is provided with an internal thread, and the tube cap and the needle tube are assembled through rotation of the threads; the outer diameter of the push rod is matched with the inner diameter of a handle, and the outer diameter of the piston and the inner diameter of the needle tube are in an interference fit for sealing; the stop ring is welded to the part, near the handle end of the needle tube, of the needle tube, and during assembly, the push rod runs through the inner hole of the handle and assembled with the piston so as to form a locking structure after assembly. According to the pre-filled high-temperature sterilization syringe, a filling machine is used to inject a certain amount of drug liquid through the top of the needle tube of the syringe, the tube cap and the needle tube are assembled through rotation of the threads so that sealing and locking can be achieved, and the syringe is delivered into a sterilization chamber for steam sterilization at a high temperature of 121 DEG C for 30 minutes.

The invention discloses an induction system. The induction system comprises a cylinder body on which a connecting pipe is formed, an induction main body which is rotationally arranged in a hollow cavity of the cylinder body through a gear mechanism, a backflow preventing mechanism which comprises a spring, a floating block and a spring base, an electrolyte supplying mechanism which comprises a piston body, a first air cylinder, a conveying pipe, and a second air cylinder, a guiding wheel mechanism which is matched with the gear mechanism and used for limiting the position of the induction main body in the cylinder body, and a box disassembling mechanism, wherein a communicating pipe is fixedly arranged on a shell sleeve; a flow guide pipe is formed on the communicating pipe; a residual liquid box is in threaded connection with the flow guide pipe; and conveying holes are formed in the piston body and a plurality of soft rubber sheets are arranged in the conveying holes. By means of the mode, the residual liquid box can be rapidly disassembled and assembled by the induction system.

The invention provides a hygienic foot basin structure for nursing on a sickbed. The hygienic foot basin structure comprises a storage box, inner supporting rods, an elastic suspension strap, an electric pump hood, an electric pump and a control panel. A spray gun insertion ring is welded to the peripheral side wall of a right fan supporting rod, and a spray gun is correspondingly supported and inserted into the spray gun insertion ring. The tail end of the spray gun and top ends of a water outlet pipe and a water inlet pipe of the electric pump are provided with external threads respectively,a stainless steel anti-blast shower head hose is in threaded connection between the spray gun and the water outlet pipe of the electric pump, and another stainless steel anti-blast shower head hose is in threaded connection with the water inlet pipe of the electric pump while the other end of the stainless steel anti-blast shower head hose is put in a water storage cavity in a foot basin body. Byarrangement of two arc water guide plates, after water absorption sponge completely absorb cleaning water, water in the sponge can be guided into a water receiving groove through the two arc water guide plates, and accordingly cleaning water is prevented from directly dripping to a bed through crus insertion holes.

The invention relates to a control method of a dry cleaning machine and a dry cleaning machine. The control method comprises steps of during the work of the dry cleaning machine, detecting concentration of dry cleaning solvent steam in a washing drum and/or a drying air path, locking a machine door when the detection value is larger than a safety value, and opening the machine door when the detection value is smaller than the safety value. The dry cleaning machine comprises a circulating air path formed by the washing drum and the drying air path communicated with the washing drum. A drying assembly is disposed in the drying air path; and a concentration sensor is disposed in the circulating air path to detect concentration value (P) of dry cleaning solvent steam contained in the air flow flowing through the concentration sensor in the circulating air path. The washing machine door can be opened and closed via detection of concentration of dry cleaning solvent air in the washing drum so as to prevent leakage of the dry clean solvent and guarantee user safety; dry cleaning machine safety can be improved; and possibility of wrong operation of the user can be lowered. The dry cleaning machine is simply structured and convenient to operate, has obvious effect and can be suitable for promotion and application.

The embodiment of the invention provides a file protection method and device, and a terminal. The method comprises the following steps of: when a file is detected to operate, receiving decryption information input by a user; comparing the decryption information with encryption information in the file to obtain a comparison result; according to the comparison result, judging whether the decryption information is abnormal or not; and if the decryption information is abnormal, transferring the file to a preset storage position. By use of the scheme, after the user inputs the decryption information, whether the decryption information is abnormal or not is judged through the comparison result of the decryption information and the encryption information in the file, and the file is transferred when the decryption information is abnormal. When other people carry out illegal cracking on an encrypted file, the file can be transferred, and a phenomenon that the private file of the user is illegally obtained by other people so as to cause the leakage of the private information of the user is avoided so as to improve the information security of the terminal.

The invention relates to a shield portal expanding transformation construction method. The method is used for construction that the diameter of an original portal ring is 6700 mm and the portal ring diameter reaches 7100 mm after expanding. The method comprises the following steps that (1) setting out is carried out on the center of a designed portal; (2) after positioning and setting out are completed, an original portal ring steel plate and a lining are chiseled off according to a chiseling-off line; (3) after the portal ring steel plate and a lining wall are chiseled off and finished, steelbar planting and drilling are carried out in the long side direction and the short side direction of the portal ring L-shaped steel plate; and (4) the portal ring steel plate is divided into six equal parts, the six equal parts are primarily fixed on a wall, firstly, the two ends of each steel plate are primarily fixed, the roundness and the inner diameter of the portal ring are checked and rechecked after all the steel plates are primarily fixed on the wall, and adjusting is carried out according to the rechecking result. According to the construction method, the defects and risks of a previous construction method are avoided, the workload is reduced, the construction risk is small, the strength, rigidity and waterproofness of the newly-manufactured portal ring meet the design requirements, meanwhile, the structural boundary of a station is not affected, and the construction method can be suitable for all working conditions of similar projects.

The invention belongs to the technical field of high-power power supply equipment monitoring and relates to a high-power power supply equipment state monitoring device and a using method. The device comprises a supporting mechanism, a safeguard mechanism, a protection mechanism and wire pressing mechanisms; the surface of the supporting mechanism is provided with the protection mechanism for controlling the switching on and switching off of a circuit; the supporting mechanism fixes the protection mechanism; the protection mechanism can rapidly replace a damaged fuse wire during emergency construction, normal operation of construction is guaranteed, and the construction speed is increased; the two wire pressing mechanisms are diagonally mounted on the surface of the supporting mechanism andcan fix wires at the two ends of the protection mechanism, so that the wires are prevented from falling off from the two ends of the protection mechanism when power equipment is used, normal power supply of the equipment is guaranteed, and electric leakage is avoided; and the safeguard mechanism is installed at the top of the supporting mechanism, so that the protection mechanism can be protectedduring outdoor construction in rainy days, and the situation that the power equipment cannot be used due to rainwater entering the power equipment is avoided.

The invention belongs to the field of water body remediation, and particularly relates to water body remediation equipment which comprises a ship body, a ventilation hole is formed in the upper portion of the ship body and can make the air pressure in the ship body equal to the atmospheric pressure, two rotating shafts are rotationally arranged below the ship body, and telescopic plates are fixedly arranged on the rotating shafts; a discharging block is fixedly arranged at the lower end of the telescopic plate close to the ventilation hole, a pesticide storage box is fixedly arranged in the ship body below the ventilation hole, a shell is fixedly arranged below the pesticide storage box, a discharging pipe connected with the shell is arranged on the rotating shaft close to one side of the ventilation hole, and the other end of the discharging pipe can be communicated to the discharging block. And underwater sludge can be sucked up and a repairing agent can be added into the underwater sludge.

The invention relates to the technical field of pipeline plugging, and particularly relates to a plastic pipeline plugging device. The plastic pipeline plugging device comprises a middle shaft column,wherein a rotating column is arranged in the middle shaft column; a pressing disc column and a fixing disc are arranged outside the middle shaft column in a sleeving mode; an extrusion fixing disc isarranged at one end of the fixing disc; a rotating disc is arranged in the extrusion fixing disc; the middle shaft column comprises a middle shaft column body; the rotating disc comprises a rotatingblocking disc and a rotating limiting disc; the rotating limiting disc comprises a rotating sliding plate, a rotating blocking fixing plate and a rotating stop block; and a rubber soft pressing ring is connected to one side of the fixing disc. The problems that when a pipeline is damaged and leaks for first-aid repair, upstream and downstream ports of the pipeline need to be sealed, operation is inconvenient, gas and liquid in the pipeline are wasted, traditional air bag sealing cannot achieve sealing and stability in the pipeline, sliding is prone to being caused by thrust of upstream liquid,an existing pipeline plugging device is arranged on a pipeline with an internal thread or an external thread through a threaded cover, but the existing pipeline plugging device cannot play a role ina pipeline without a thread are solved.

The invention relates to a novel sewage treatment biofilter device. The novel sewage treatment biofilter device comprises a tank body, a supporting rod, fixed blocks and a fixed rod, wherein the tank body is connected with soil, an embedded frame is arranged at the lower part of the tank body, locating embossment grooves are formed in the two ends of the tank body, locating embossments are formed in the lower part of the supporting rod, the locating embossments are adaptive to the locating embossment grooves, the locating embossments are connected with the locating embossment grooves by virtue of locating pins, the locating embossments are inserted into the locating embossment grooves, a mounting plate is arranged at the upper part of the supporting rod, mounting embossments are formed at the two sides of the tank body, the mounting embossments are adaptive to the mounting plate, the mounting plate is connected with the mounting embossments, fixed block grooves are formed in the two sides of each mounting embossment, the fixed block grooves are adaptive to the fixed blocks, the fixed blocks are connected with the fixed block grooves, each fixed block is provided with a mounting rod, each mounting rod is connected with the mounting plate, and the mounting rods pass through the mounting plate.

The invention relates to a novel internal self-lubricating gear which comprises a plurality of gear teeth. Each gear tooth is internally provided with a cavity. The engagement area of each gear tooth is provided with a plurality of first holes. A body is provided with one or more second holes. The first holes and the second holes all communicate with the cavities. The second holes are provided with one-way valves. By adoption of the novel internal self-lubricating gear, the engagement areas of the gear tooth can be automatically and continuously lubricated, the lubricating effect is improved, the lubrication area is wide, abrasion to the gear teeth is reduced, the service life of the gear is prolonged, reliability and safety of gear working are improved, the safety problem that lubricating oil is inconvenient to add during work of the gear is solved, lubricating oil waste is reduced, lubricating oil leakage caused by an oil bath mode is avoided, cost is saved, the structure is simple, machining is convenient, and the gear is particularly suitable for a low-speed heavy-load large reducer.